Hello everyone. I am new to IC and a new Insight owner. I purchased a 2001 CVT around 3 weeks ago. Everything was fine until I was pulling a pretty steep hill on the highway and the IMA light came on. Shortly after this, the check engine light. It’s a 20 year old battery , so after reading here it seems one should start with a grid charge. Then a discharge. Is it better to discharge using the light bulbs, or to buy a unit that discharges for you?